generated by cgit v1.2.3 (git 2.39.1) at 2025-01-01 15:51:09 +0000
 


n>)
	}
	return rawBytes
}

// renderSha1CurrentPattern renders SHA1 strings to corresponding links that assumes in the same repository.
func renderSha1CurrentPattern(rawBytes []byte, urlPrefix string) []byte {
	ms := Sha1CurrentPattern.FindAllSubmatch(rawBytes, -1)
	for _, m := range ms {
		hash := m[1]
		// The regex does not lie, it matches the hash pattern.
		// However, a regex cannot know if a hash actually exists or not.
		// We could assume that a SHA1 hash should probably contain alphas AND numerics
		// but that is not always the case.
		// Although unlikely, deadbeef and 1234567 are valid short forms of SHA1 hash
		// as used by git and github for linking and thus we have to do similar.
		rawBytes = bytes.Replace(rawBytes, hash, []byte(fmt.Sprintf(
			`<a href="%s">%s</a>`, URLJoin(urlPrefix, "commit", string(hash)), base.ShortSha(string(hash)))), -1)
	}
	return rawBytes
}

// RenderSpecialLink renders mentions, indexes and SHA1 strings to corresponding links.
func RenderSpecialLink(rawBytes []byte, urlPrefix string, metas map[string]string, isWikiMarkdown bool) []byte {
	ms := MentionPattern.FindAll(rawBytes, -1)
	for _, m := range ms {
		m = m[bytes.Index(m, []byte("@")):]
		rawBytes = bytes.Replace(rawBytes, m,
			[]byte(fmt.Sprintf(`<a href="%s">%s</a>`, URLJoin(setting.AppURL, string(m[1:])), m)), -1)
	}

	rawBytes = RenderFullIssuePattern(rawBytes)
	rawBytes = RenderShortLinks(rawBytes, urlPrefix, false, isWikiMarkdown)
	rawBytes = RenderIssueIndexPattern(rawBytes, RenderIssueIndexPatternOptions{
		URLPrefix: urlPrefix,
		Metas:     metas,
	})
	rawBytes = RenderCrossReferenceIssueIndexPattern(rawBytes, urlPrefix, metas)
	rawBytes = renderFullSha1Pattern(rawBytes, urlPrefix)
	rawBytes = renderSha1CurrentPattern(rawBytes, urlPrefix)
	return rawBytes
}

var (
	leftAngleBracket  = []byte("</")
	rightAngleBracket = []byte(">")
)

var noEndTags = []string{"img", "input", "br", "hr"}

// PostProcess treats different types of HTML differently,
// and only renders special links for plain text blocks.
func PostProcess(rawHTML []byte, urlPrefix string, metas map[string]string, isWikiMarkdown bool) []byte {
	startTags := make([]string, 0, 5)
	var buf bytes.Buffer
	tokenizer := html.NewTokenizer(bytes.NewReader(rawHTML))

OUTER_LOOP:
	for html.ErrorToken != tokenizer.Next() {
		token := tokenizer.Token()
		switch token.Type {
		case html.TextToken:
			buf.Write(RenderSpecialLink([]byte(token.String()), urlPrefix, metas, isWikiMarkdown))

		case html.StartTagToken:
			buf.WriteString(token.String())
			tagName := token.Data
			// If this is an excluded tag, we skip processing all output until a close tag is encountered.
			if strings.EqualFold("a", tagName) || strings.EqualFold("code", tagName) || strings.EqualFold("pre", tagName) {
				stackNum := 1
				for html.ErrorToken != tokenizer.Next() {
					token = tokenizer.Token()

					// Copy the token to the output verbatim
					buf.Write(RenderShortLinks([]byte(token.String()), urlPrefix, true, isWikiMarkdown))

					if token.Type == html.StartTagToken && !com.IsSliceContainsStr(noEndTags, token.Data) {
						stackNum++
					}

					// If this is the close tag to the outer-most, we are done
					if token.Type == html.EndTagToken {
						stackNum--

						if stackNum <= 0 && strings.EqualFold(tagName, token.Data) {
							break
						}
					}
				}
				continue OUTER_LOOP
			}

			if !com.IsSliceContainsStr(noEndTags, tagName) {
				startTags = append(startTags, tagName)
			}

		case html.EndTagToken:
			if len(startTags) == 0 {
				buf.WriteString(token.String())
				break
			}

			buf.Write(leftAngleBracket)
			buf.WriteString(startTags[len(startTags)-1])
			buf.Write(rightAngleBracket)
			startTags = startTags[:len(startTags)-1]
		default:
			buf.WriteString(token.String())
		}
	}

	if io.EOF == tokenizer.Err() {
		return buf.Bytes()
	}

	// If we are not at the end of the input, then some other parsing error has occurred,
	// so return the input verbatim.
	return rawHTML
}